Attachment-holder for sewing-machines



(No Model.)

J M GRIEST ATTACHMENT HOLDER FOR SEWING MACHINES.

Patented Feb. 25,1890.

Nrrsn TATES ATENT OFFICE.

JOHN M. GRIEST, OF BERGEN POINT, NEW JERSEY, ASSIGNOR TO THE SINGERMANUFACTURING COMPANY OF NEXV JERSEY.

ATTACHMENT-HOLDER FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 421,927, dated February25, 1890. Application filed December 12, 1889. Serial No. 333,399. (Nomodel.)

To whom it may concern;

Be it known that I, JOHN M. GRIEsT, a citizen of the United States,residing at Bergen Point, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements inSewing-lVIachine Attachment-Holders, of which the following is aspecification, reference being had therein to the accompanying drawings.

It is desirable in making sets of hemmers and other sewing-machineattachments which are to be'secured to the presser-foot to have themreadily adjustable to the right or left without swinging out of linewith the feed of the machine. In making such right or left or lateraladjustment of a hemmer or similar attachment to bring its guiding edgein proper relation to the line of the needle itis desirable that whenthe proper adjustment has been secured the construction of parts will besuch that after the attachment has been removed from the presser-foot itmay be replaced and accurately brought into its former position ofadjustment without special care 011 the part of the operator. Thus, theproper adjustment of the hemmer or similar attachment having been oncescoured, the attachm ent maybe removed and replaced without disturbingsuch adjustment. It is also frequently desirable in adjusting the workbefore starting in to sew at the beginning of a hem to have the hemmerbelow the level of the bottom of the presser-foot when the latter israised, so that the cloth may be drawn back and forth to roll the hembefore adjusting the work to the needle to begin to sew at the end ofthe hem.

My invention has for its object to provide a certain novel constructionof parts by which a hemmer or similar attachment may be so secured to asewing-machine presser foot as to attain the results above stated.

In carrying my invention into eifect I provide the rear of thepresser-foot with a transverse socket, into which is fitted one end of around pin or bar, the projecting'end of which is screw threaded and isreceived in an internally-threaded eye at the rear end of a shank,carrying at its forward end the hemmer or similar attachment. The partof the pin or bar received in the socket of the presser-foot ispreferably of less diameter than the other part thereof, and is providedwith an annular groove or notch to be engaged by the end of a device orset-screw which retains the pin or bar in its socket. The largerprojecting part of the pin or bar is screw-threaded externally and isengaged by an internallythreaded eye on the rear end of anattachment-carrying shank, the said pin or bar being providedat one endwith a nick for the reception of a screw-driver, by which it may beturned when necessary. The round pin or bar permits the hemmer attheforward end of the shank to drop or be depressed below the bottom of thepresser-foot when the latter is raised; and to adjust thehemmer or otherattachment to the right or left it is only necessary to turn the pin orbar one way or the other, the set-screw being first slightly loosened topermit of such turning.

In the accompanying drawings, Figure 1 is a plan view, partly insection, of the preferred form of my invention. Fig. 2 is a side view ofthe same. Fig. 3 is a detail View of the pin. Fig. 4 is a View similarto Fig. 1, showing a slightly-modified form of my invention; and Fig. 5is a front View of the same with the attachment-carrying shank insection.

A denotes a presser-foot provided at its rear portion with a roundsocket to, in which is fitted one end of a round pin B, the other orprojecting end I) of which is preferably of larger diameter than the endin said socket and is screw-threaded externally. The pin B is providedwith an annular groove or notch b, and is retained in its socket a by adevice consisting, preferably, of a set-screw a, the inner end of whichenters said groove or notch. The inner end I) of the enlarged portion ofthe pin B forms a shoulder or stop, and the groove Z) is at suchdistance from said shoulder or stop that when the latter is in contactwith the inner or right side of the presser-foot the said groove isopposite the end of the said set-screw. Thus in inserting the said pinin place it will always come to the same position of adjustment withoutspecial care on the part of the operator.

G is the attachment-holding shank or bar, to the forward end of which issecured the hemmer or other attachment D, said bar be IOC ing providedat its rear end with an inte'rnally-threaded eye 0, receiving thethreaded part of the pin B.

To adjust the hemmer or other attachment laterally or to the right orleft, the set-screw a may be slightly loosened, and the pin B may thenbe turned in its socket by a screwdriver inserted in the nick in itsend, thus causing the shank O to travel to the right or left to bringthe guiding-edge of the attachment in proper relation to the line of theneedle and without swinging the attachment out of line with the feed.

As hereinbefore stated, it is sometimes desirable when adjusting thework in commencing to sew a hem to have the hemmer below I the bottom ofthe presser-foot when the latter is raised, so that the cloth may bedrawn back and forth to roll the hem. The set-screw a does not hold theround pin 13 so tight but that when the presser-foot is lifted, asdenoted by dotted lines in Fig. 2, the hemmer may drop or be presseddown upon the work-plate .of the machine to permit the cloth to be drawnback and forth, and when the presser-foot is again lowered upon the workthe parts assume the normal position, (denoted in full lines in Fig. 2,)the attachmentcarrying shank 0 being to the right of or in a differentvertical plane from the presser-foot so that the latter will notinterfere therewith. Thus the presser-foot-attached hemmer will have allthe advantages of a bed-plate-attached hemmer without the disadvantagesof the latter. Moreover, the round pin B permits the hemmer to be raisedwhen it is desired to pass the material under it to sew a seam whilehemming.

In the modification shown in Figs. 4- and 5 the construction andarrangement of parts are the same as is hereinbefore described,excepting that the shank O is arranged to come above the right side ofthe presser-foot, the latter having a notch a to receive said shank.This provides for a positive engagement of the said shank with thepresser-foot, so that the attachment will be moved up and down therewithwhen said foot is raised and low From the foregoing it will be apparentthat my invention comprises as an essential feature a pin or barremovably secured to the presser-foot and provided with a stop, affordedby the shoulder o to insure that it will be set in its proper positionof adjustment when replaced after removal, combined with anattachment-carrying shank which is laterally adjustable on the said pinor bar, and preferably by means of the screw adjustment afforded by thethreaded portion of said pin or bar and the internally-threaded socketof the said shank.

1. The combination, with the presser-foot having the socket, of the pinor bar fitted 1n said socket and having an annular groove or notch and aprojecting threaded end, a device for engaging said notch or groove tosecure said pin or bar in said socket, and an attachment-carrying shankhaving .an internally-threaded eye entered by the threaded part of saidpin or bar.

2. The combination, with the presser-foot having the socket, of the pinor bar fitted in said socket and having an annular notch or groove, aprojecting threaded end, and a shoulder or stop, a device to engage saidnotch or groove to secure said pin or bar in said socket, and anattachment carrying shank having an internally-threaded eye entered bythe threaded part of said pin or bar.

3. The combination, with the presser-foot having the socket, of a pin orbar having an annular groove and a projecting threaded end of largerdiameter than the other part thereof, and the inner end or shoulder ofwhich serves as a stop, a device or set-screw to engage said groove tosecure said pin or bar in said socket, and an attachment-carrying barhaving an internally-threaded eye entered by the threaded part of saidpin or bar.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN M. GRIEST.

\Vitn esses:

L. B. MILLER, L. L. BURRITT.

